LONGINES Serge Manzon ref. 5018 designer's watch. Silver 925, case with integrated buckle. Mechanical movement with manual winding in working order (-13 s/d, 263° Amplitude). Mirror crosshair dial with silver hands. Dark brown leather strap with heavier signs of wear. Used with visible signs of wear on the case and clasp. Diameter approx. 34 mm measured without crown.